Question

Which of the following statements about quantum numbers are true? (Choose "True" or "False" for each statement.)
True/False  Quantum numbers describe the number of protons and neutrons in an atom.
True/False  The m_s quantum number has just 2 allowed values.
True/False  The labels on atomic orbitals (1s, 2p, etc.) are based on quantum numbers.
True/False  n, l, m_l, and m_s are quantum numbers.
True/False  It takes three quantum numbers to specify an atomic orbital.

Answer 1

1. False     explanation: Quantum no.s describe orbitals and arrangement of electrons in it.

2. True     explanation: Spin quantum number (ms) having two values that is +1/2 and -1/2

3. True   explanation: the labels on atomic orbitals 1s, 2p etc. are based on quantum numbers. example in 1s orbital 1 is primary quantum no. (n) and s gives from substidary quantum no.

4. True     explanation: yes. primary quantum no. (n), subsidary quantum no. (l), magnetic quantum no.(ml) and spin quantum no. (ms) all are quantum numbes.

5. True    explanation: if we define a orbital it takes 3 quantums no. (n,l.ml). if u define a electron we take all four quantum no.s( spin quantum no. describes the spin of the electron)